Police have launched a murder investigation following the death of a man on the M4 on Friday night.

At around 10pm officers were called to the incident which took place on the inside lane near ongoing roadworks on the eastbound carriageway between junction 10 and junction 8/9.

Emergency services were called by a female driver involved in the crash and the man, who was in his forties, was pronounced dead at the scene. A post mortem is being carried out this afternoon.

Detective Chief Superintendent Chris Ward from Thames Valley Police Major Crime said: “We have been investigating the death of a man in his forties on the M4 on Friday night and working to establish the exact circumstances behind the death.

“It is as a result of this work that we are now treating this death as a murder investigation.

“I therefore ask that if anyone was travelling along this stretch of motorway on Friday night and saw anything which could help our investigation to get in touch immediately. Did you see anything unusual?”